A fault-clearing algorithm supporting the MAS-based protection schemes. (December 2018)

• Record Type: Journal Article
• Authors: Fani, Bahador; Abbaspour, Ehsan; Karami-Horestani, Alireza
• Is Part Of: International journal of electrical power & energy systems. Volume 103(2018)
• Page Start: 257
• Page End: 266
• Publication Date: 2018-12
• Subjects: Electrical engineering -- Periodicals; Electric power systems -- Periodicals; Électrotechnique -- Périodiques; Réseaux électriques (Énergie) -- Périodiques; Electric power systems; Electrical engineering; Periodicals; 621.3
• DOI: 10.1016/j.ijepes.2018.06.001
• Languages: English
• ISSNs: 0142-0615

Abstract

Highlights: The paper proposes an urgent back-up algorithm to replace the MAS during emergency condition. To do so, this paper classifies the protection duties into two hierarchical control levels. The first level immediately clears the fault while the second gradually updates the relay setting. An algorithm is proposed to do the first-level-control duties without central controller aids. When the emergency condition ends up, the MAS will again play the main role. Abstract: Despite the fast, reliable and multi-purpose operation of MAS-based protection schemes, the inherent delay or failure of communication system must not affect the vital role of fault clearing, i.e., the ever-increasing renewables in distribution networks as well as network size increase has resulted in a heavy communication burden yielding to delay or even failure in communication. This fact will necessitate having an auxiliary algorithm to save protection system against any load curtailment. To affordably achieve this goal, this paper proposes a self-healing approach having the ability to temporarily replace the common MAS algorithms during emergency conditions. Accordingly, this paper, first, classifies the protection tasks into two hierarchical control levels; the first is responsible for clearing the fault while the second pursues some technical or economical goals. Next, using some less-considered capabilities of the common relays, a penetration-free algorithm is proposed to perform the first-control-level duties without MAS aid. Finally, the effectiveness of the proposed is proved on a practical distribution network. In general, this method can be a complement for the common MAS-based protection schemes to avoid any electricity interruption due to protection failure.